There is 4 different kinds of beads on this braclet
Terahertz Beads - Restore disorganize nerve and improve natural healing ability of physical.
Obsidian Beads - a black gemstone beads formed from lava flow out volcano magma suddenly cooled to be Natural coloured glaze, which belong to non crystalline gems.
Tiger eye - a chatoyant gemstone that is usually a metamorphic rock with a golden to red-brown colour and a silky lustre.
Silver - a Low hypoallergenic metal
This braclet is good looking aswell is a great gift for men.